From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Wed, 15 Aug 2018 12:05:12 -0700
Subject: [PATCH] Optimize BlockPosition helper methods

Resolves #1338

diff --git a/src/main/java/net/minecraft/core/BlockPos.java b/src/main/java/net/minecraft/core/BlockPos.java
index 85bdeafd92aff5d694c4b5dff0b5796f3467a886..0e39b49f603bea0f731652bac71067237b3869b4 100644
--- a/src/main/java/net/minecraft/core/BlockPos.java
+++ b/src/main/java/net/minecraft/core/BlockPos.java
@@ -130,67 +130,84 @@ public class BlockPos extends Vec3i {
 
     @Override
     public BlockPos above() {
-        return this.relative(Direction.UP);
+        return new BlockPos(this.getX(), this.getY() + 1, this.getZ()); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos above(int distance) {
-        return this.relative(Direction.UP, distance);
+        return distance == 0 ? this : new BlockPos(this.getX(), this.getY() + distance, this.getZ()); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos below() {
-        return this.relative(Direction.DOWN);
+        return new BlockPos(this.getX(), this.getY() - 1, this.getZ()); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos below(int i) {
-        return this.relative(Direction.DOWN, i);
+        return i == 0 ? this : new BlockPos(this.getX(), this.getY() - i, this.getZ()); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos north() {
-        return this.relative(Direction.NORTH);
+        return new BlockPos(this.getX(), this.getY(), this.getZ() - 1); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos north(int distance) {
-        return this.relative(Direction.NORTH, distance);
+        return distance == 0 ? this : new BlockPos(this.getX(), this.getY(), this.getZ() - distance); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos south() {
-        return this.relative(Direction.SOUTH);
+        return new BlockPos(this.getX(), this.getY(), this.getZ() + 1); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos south(int distance) {
-        return this.relative(Direction.SOUTH, distance);
+        return distance == 0 ? this : new BlockPos(this.getX(), this.getY(), this.getZ() + distance); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos west() {
-        return this.relative(Direction.WEST);
+        return new BlockPos(this.getX() - 1, this.getY(), this.getZ()); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos west(int distance) {
-        return this.relative(Direction.WEST, distance);
+        return distance == 0 ? this : new BlockPos(this.getX() - distance, this.getY(), this.getZ()); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos east() {
-        return this.relative(Direction.EAST);
+        return new BlockPos(this.getX() + 1, this.getY(), this.getZ()); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos east(int distance) {
-        return this.relative(Direction.EAST, distance);
+        return distance == 0 ? this : new BlockPos(this.getX() + distance, this.getY(), this.getZ()); // Paper - Optimize BlockPosition
     }
 
     @Override
     public BlockPos relative(Direction direction) {
+        // Paper Start - Optimize BlockPosition
+        switch(direction) {
+            case UP:
+                return new BlockPos(this.getX(), this.getY() + 1, this.getZ());
+            case DOWN:
+                return new BlockPos(this.getX(), this.getY() - 1, this.getZ());
+            case NORTH:
+                return new BlockPos(this.getX(), this.getY(), this.getZ() - 1);
+            case SOUTH:
+                return new BlockPos(this.getX(), this.getY(), this.getZ() + 1);
+            case WEST:
+                return new BlockPos(this.getX() - 1, this.getY(), this.getZ());
+            case EAST:
+                return new BlockPos(this.getX() + 1, this.getY(), this.getZ());
+            default:
         return new BlockPos(this.getX() + direction.getStepX(), this.getY() + direction.getStepY(), this.getZ() + direction.getStepZ());
+        }
+        // Paper End
     }
 
     @Override
